/*
 *  $Id$

    Copyright (C) 2008  Nathaniel Waisbrot

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package termint.brains;

import java.util.ArrayList;

import termint.game.dungeon.Feature;
import termint.game.dungeon.Room;
import termint.gui.vt.VTElement;
import termint.gui.vt.VTElementListener;
import termint.gui.vt.VTElementWatcher;

/**
 * @author Nathaniel Waisbrot
 * Watches for features to appear on the map
 */
public class FeatureWatcher implements VTElementListener, SoundDecoder.Listener {	
	private final ArrayList<DungeonFeatureListener> listeners = new ArrayList<>();
	private final StatsWatcher stats;
	
	/**
	 * VTElementWatcher gets passed in because we dynamically figure out which elements we want to watch for
	 */
	public FeatureWatcher(StatsWatcher stats, VTElementWatcher vteWatcher) {
		this.stats = stats;
		for (VTElement vte : Feature.vteToFeature.keySet()) {
			vteWatcher.addListener(this, vte);
		}
	}
	
	public void addListener(DungeonFeatureListener listener) {
		listeners.add(listener);
	}
	
	@Override
	public void vtElementSeen(VTElement element, int x, int y) {
		Feature f = Feature.create(element, x, y, stats.dlvl());
		for (DungeonFeatureListener l : listeners)
			l.featureDetected(f);
	}


	@Override
	public void heardFeature(Class<? extends Feature> roomType) {
		for (DungeonFeatureListener l : listeners)
			l.genericFeature(roomType);
	}

	/** ignored */
	@Override
	public void heardRoom(Class<? extends Room> roomType) {}
}
